@article{JMLR:v7:munos06a,
  author  = {R{{\'e}}mi Munos},
  title   = {Geometric Variance Reduction in Markov Chains: Application to Value Function and Gradient Estimation},
  journal = {Journal of Machine Learning Research},
  year    = {2006},
  volume  = {7},
  number  = {14},
  pages   = {413--427},
  url     = {http://jmlr.org/papers/v7/munos06a.html}
}